AT108132B - Process for the separation of hafnium and zirconium. - Google Patents

Process for the separation of hafnium and zirconium.

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Publication number
AT108132B
AT108132B AT108132DA AT108132B AT 108132 B AT108132 B AT 108132B AT 108132D A AT108132D A AT 108132DA AT 108132 B AT108132 B AT 108132B
Authority
AT
Austria
Prior art keywords
hafnium
zirconium
separation
mixture
decomposition
Prior art date
Application number
Other languages
German (de)
Inventor
Jan Hendrik De Boer
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT108132B publication Critical patent/AT108132B/en

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Description

  

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  Verfahren zur Trennung von Hafnium und Zirkonium. 
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   Schliesslich ist nachstehend ein Beispiel beschrieben, bei dem die Zersetzung der komplexen Verbindungen durch ein Zirkoniumsalz bewirkt wird. Man löst eine Mischung von Hafnium-und Zirkoniumphosphat, die auf Zirkonium berechnet   Y2-1 % Hafnium   enthält, in Fluorwasserstoffsäure und teilt die so erhaltene Lösung in zwei Teile   A   und B. Den Teil   A   fällt man mit Hilfe einer Base aus. Das so erhaltene Hydroxyd wird   ausgewaschen   und in Salzsäure gelöst. Diese Lösung wird nun dem Teil B der Lösung der komplexen Verbindungen zugesetzt.

   Wählt man die Beziehung der Teile   A   und B derart, dass etwa      des   ursprünglich   vorhandenen Hafniums und Zirkoniums zersetzt wird, so enthält die infolge dieser Zersetzung gefällte   Mischung von Hafnium-und Zirkoniumphosphat auf Zirkonium berechnet   etwa 2% Hafnium. Verfährt man mit dem so erhaltenen 2% Hafnium enthaltenden   Zirkoniumphosphat   nochmals in derselben Weise und führt man die Zersetzung eines Drittels der Mischung von Hafnium 
 EMI2.1 
 diesem 4% Hafnium enthaltenden Zirkoniumphosphat abermals in derselben Weise und führt man die Zersetzung eines Viertels der Mischung von Hafnium und Zirkonium herbei, so enthält das dabei gebildete Gemenge der Phosphate 9% Hafnium. 



   PATENT-ANSPRUCHE :
1. Verfahren zur Trennung von Hafnium und Zirkonium mittels fraktionierter Zersetzung, dadurch   gekennzeichnet,   dass einer Mischung der komplexen Verbindungen, die durch   Einführung   eines Gemisches von Hafnium-und Zirkoniumphosphat in ein Fluorwasserstoffsäure oder ein Bifluorid enthaltendes Mittel erzielt werden können, ein Stoff zugesetzt wird, der die komplexen Verbindungen durch   Ent-   fernung von Fluor unter   Zumeklassung   der Phosphate von Hafnium und   Zirkonium   fraktioniert zersetzt. 
 EMI2.2 




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  Process for the separation of hafnium and zirconium.
 EMI1.1
 

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   Finally, an example is described below in which the decomposition of the complex compounds is effected by a zirconium salt. A mixture of hafnium and zirconium phosphate, which contains Y2-1% hafnium based on zirconium, is dissolved in hydrofluoric acid and the solution thus obtained is divided into two parts A and B. Part A is precipitated with the aid of a base. The hydroxide obtained in this way is washed out and dissolved in hydrochloric acid. This solution is now added to part B of the solution of the complex compounds.

   If the relationship of parts A and B is chosen such that the originally present hafnium and zirconium is decomposed, then the mixture of hafnium and zirconium phosphate on zirconium precipitated as a result of this decomposition contains about 2% hafnium calculated. If the zirconium phosphate thus obtained, which contains 2% hafnium, is repeated in the same way, one third of the hafnium mixture is decomposed
 EMI2.1
 this zirconium phosphate containing 4% hafnium again in the same way and if the decomposition of a quarter of the mixture of hafnium and zirconium is brought about, the resulting mixture of phosphates contains 9% hafnium.



   PATENT CLAIMS:
1. A method for the separation of hafnium and zirconium by means of fractional decomposition, characterized in that a substance is added to a mixture of the complex compounds which can be obtained by introducing a mixture of hafnium and zirconium phosphate into a hydrofluoric acid or a bifluoride-containing agent, which fractionally decomposes the complex compounds by removing fluorine and adding the phosphates of hafnium and zirconium.
 EMI2.2


 
AT108132D 1925-10-28 1926-09-06 Process for the separation of hafnium and zirconium. AT108132B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL108132X 1925-10-28

Publications (1)

Publication Number Publication Date
AT108132B true AT108132B (en) 1927-11-25

Family

ID=19774897

Family Applications (1)

Application Number Title Priority Date Filing Date
AT108132D AT108132B (en) 1925-10-28 1926-09-06 Process for the separation of hafnium and zirconium.

Country Status (1)

Country Link
AT (1) AT108132B (en)

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